I've always gone for a tint film sunstrip on the inside of the window. I prefer them to the totally opaque ones as you can still see traffic lights etc throught them and they give the same look and perform the same function. I've not got one on the Clio but I'm 6ft tall and the Recaro is quite high so I may not get one.
I didn't have any graphics on the outside of the window but you can see the sunstrip on the window in this picture: